how do you change it?

Dont worry about the color of the wires, after you have it hooked up and the motor run backwards, just switch any two wires. Sounds wierd but trust me it works. 45amps may be a little overkill but you may not have to worry about esc shutdown, you'll probably toast the motor first but brushless motors you dont usually hear of them getting to hot.

the wires are different size, and i don't have any connectors, will some connectors from walmart work? or any connectors that i can krimp on the wires?

Its best to use bullet connectors found at your LHS, Im surprised they didnt tell you that. Using bullet connectors allows you to switch wires around, switch motors without having to solder everytime.

i got some snap connects from walmart, so i can easily connect and unconnect them, the have plastic and just crimp on. will they work?

Im not familiar with the connectors you write about

They are basic 'automotive' connectors you are talking about, crimp ons. Personally I wouldn't use them. They tend to corrode quicker, sloppier connections and heavier. They will do in a pinch to keep ur bird flying but you should probably swap them asap for the correct connectors when you can.... IMHO

well i got it install and programed it for heli option and when i spool up, it runs for 5 secs and quits, until i put the throttle lever back down and spool it back up, for it to quit again in 5 secs. [:@] now i dunno, this is getting old, pay 50 dollars for the junk not to work either. any suggestions of why it keeps shutting off now?

that sounds like you batteries or motor. Now for sure you know that you don't need to worry about your heli going on fire.
Check voltage on each cell. They have to be above 3.00V If not you drained too much out of em. The way to fix this is to get a charger that I've got.

Checking motor. I never ever heard of Brushless motor crapping out. So I would check the batteries first.

How many full discharges did you make on your batteries?
I heard Esky chargers crap out sometimes.

the voltages are all the same on each cell, but the motor or battery isn't getting hot. the new esc was pretty warm even though it was a couple of 5 sec spool ups.

remember though that it flies great outside, flew twice today outside and no probs(with the old esc) but just put the old esc back on to make sure it will still spool up longer than 5 secs but again inside after about 2 mins it lost alot of power

if it was the battery or motor, wouldn't it mess up outside too? because their not overheating in the house or outside

well that is really odd. Unless your house is like 50 degrees or something...
I fly my belt-cp with stock esc just fine. There's no power drainage or anything.

sorry i can't help you any further. I'm not experienced enough.

Right now Im using stock esc because outdoor is -2C for me

i had a brain storm and i thought, what if i went to the other end of the house. so i went in my sons room and spooled it up till it was light in the skids and ran out the rest of the battery and it never loss any power this time so mayber theirs something in the living room like the internet modems, or directv that could have been causing it to loose power? i felt of the esc after i finished and it was just as warm as in the living room when it does the power loss thing.

and also any tips on how to get the other esc to work also? hate wasting 50 dollars on something that don't work, especially how much money i've spent in the last couple of weeks to get the heli and extra battery and some parts.

i found this,

http://www.rcuniverse.com/forum/m_86.../tm.htm#861970

but its pretty much the same thing i did, but i do have a question where after the 4 beeps and then it says unhook battery then it says to Reconnect the battery, pull the throttle all the way down until you hear the arming beeps. when i reconnect the battery am i suppose to have the throttle in full postion or something?? supposly its suppose to calibrate itself with the motor, but mine just stops spinning till i take the throttle back down and then back up. it doesn't do like he says??? also it says to Slowly raise the collective to about 40%. what is collective?

Try googling the brand of the esc and find the programming method for your esc. As for interference from outside sources??? unlikely I would think. Is your TX/Rx stock??

i have an instruction book and the link i gave is about all i found and it tells the same thing. but i mean interference within the house, not from outside while inside. and yes everything is stock, except for the few times i had the kontronik esc on their. but now i have the stock esc back on

let me ask this, say after about 5 mins of flight time, and the battery has lost say 1/3 of its power if flight time is aroun 15 mins. would the roto speed stay the same all the way through the whole 15 mins are does is slower some during flight time?

I don't recall you ever saying exactly what battery and what motor you are using. Is this a HBK2 or a Belt-CP? Unless you have some sort of larger than stock battery, 15 minutes flight time is not realistic. ( It may be more like 8 minutes) What battery, motor, and heli are you using?

i got a belt cp, with the 3800 motor, and 1800mah battery.

what if the esc is reducing power because of thermal cuttoff, would it be so much that my heli wouldn't lift off the ground anymore?

I don't know if your ESC has a thermal cutoff or not. It is strange it exhibits the anomoly in one room of your house, but not another. It does sound like the ESC is cutting the voltage off either through a thermal cutoff or a low voltage cutoff. If your ESC has a "soft" cutoff, then it reduces the voltage when it senses your battery voltage is below a certain threshold allowing you to land, and you would see kinda' what you are now seeing. If you do not have a soft cutoff, then the ESC just kills power to the motor when it senses your battery voltage is below a certain threshold. I have a cheapo ESC in one of my helis that does not have a soft cutoff. When the battery drops below the threshold, the motor just gets cutoff. I usually don't fly it long enough to hit the cutoff. When I feel like tempting fate, I go into a low hover attempting to guess when the cutoff will happen.. When it does the heli drops to the ground like a rock. One thing I did notice since buying a real balance charger is the Esky charger had some of my lipos fairly balanced while others were way off. I had to use the repair feature on the new charger to get the way-off lipos back to spec. I had one battery that would only fly a couple of minutes and then the ESC would cut it off before I bought the Cellpro balance charger.. ( there are many good chargers)

well it still flies for like 8 more mins after i hear it. but it still lifts off the ground and very responsive. it may not be quite as touchy as before but still is very maneuverable. if it was a soft cutoff, how long of flight time would you get?

with 1800mah, around 10~15 minutes. I once bothered wearing watch while hovering and it was 13 minutes before I took my off and ended up crashing the heli.

so do we loose roto rpm while where flying or would they stay the same till esc cutouts or battery gets way to low?

I assume you stock Esky brusless motor like the 3800 or 3900
Color means nothing to the motor. it wont hurt it if you hook it up backwords but it could damage the clutch or main gear soooo!
1 remove the motor (only to prevent damage to the main gear/clutch)
2 hook up all three wires any order first time
3 turn on your transmitter
4 hook up your battery
5 give the motor a little power JUST A LITTLE just for a second (Be careful if your motor is a purple Esky its a outrunner that means the OUTSIDE rotates at about 30,000 rpm). .....hold it by the wires.
6 if it turns the correct direction fine
7 if it turns the wrong way switch any two wires
8 mark the wires with heat shrink so you know which way is "correct rotation"
Done!
BTW when you set up your new Esc be sure you set it with brake off and super soft start for helos, some aircraft Esc dont have a soft or a super soft start, also a good Esc will have a mode to adjust timing for brushless motors and Esky brushless motors are middle timing (set it at low and they shake) set it too high and they lose power
Hope this helps.
I run a 3900 Esky in a King ll with a 10 tooth pinion and a RC-Exceed 30 amp Esc with no problem. Esc barely gets warm after 13 min hovering. Super Soft start is so slow that I can actually creep the blades around at a low throttle setting.

it finally happend outside even in 55 degree weather, but this time i had the idle up on the whole time, so i it caused it to get even hotter. i have a dynam esc coming in the mail, so i sure hope this will fix it. if the motor was overheating would it decrease in speed or would it just shutoff? i was hovering about 3 ft off the ground and then after about 5 mins i heard the power loss and it dropped fairly quickly luckily i gave some throttle so it hit the ground soft, but even after that i kept going and it still lift off the ground and did just fine, just had to use more throttle. i flew it for another 5 mins then i could tell the battery was getting low and came back in. it never shuts off completely just hear it slow down.